May 2012 - Devel - libvirt List Archives

[libvirt] Submission Deadline Extension
by VHPC 12 06 May '12

06 May '12

we apologize if you receive multiple copies of this CFP =================================================================== CALL FOR PAPERS 7th Workshop on Virtualization in High-Performance Cloud Computing VHPC '12 as part of Euro-Par 2012, Rhodes Island, Greece =================================================================== Date: August 28, 2012 Workshop URL: http://vhpc.org SUBMISSION DEADLINE: June 11, 2012 - Full paper submission (extended) SCOPE: Virtualization has become a common abstraction layer in modern data centers, enabling resource owners to manage complex infrastructure independently of their applications. Conjointly, virtualization is becoming a driving technology for a manifold of industry grade IT services. The cloud concept includes the notion of a separation between resource owners and users, adding services such as hosted application frameworks and queueing. Utilizing the same infrastructure, clouds carry significant potential for use in high-performance scientific computing. The ability of clouds to provide for requests and releases of vast computing resources dynamically and close to the marginal cost of providing the services is unprecedented in the history of scientific and commercial computing. Distributed computing concepts that leverage federated resource access are popular within the grid community, but have not seen previously desired deployed levels so far. Also, many of the scientific data centers have not adopted virtualization or cloud concepts yet. This workshop aims to bring together industrial providers with the scientific community in order to foster discussion, collaboration and mutual exchange of knowledge and experience. The workshop will be one day in length, composed of 20 min paper presentations, each followed by 10 min discussion sections. Presentations may be accompanied by interactive demonstrations. TOPICS Topics of interest include, but are not limited to: Higher-level cloud architectures, focusing on issues such as: - Languages for describing highly-distributed compute jobs - Workload characterization for VM-based environments - Optimized communication libraries/protocols in the cloud - Cross-layer optimization of numeric algorithms on VM infrastructure - System and process/bytecode VM convergence - Cloud frameworks and API sets - Checkpointing/migration of large compute jobs - Instrumentation interfaces and languages - VMM performance (auto-)tuning on various load types - Cloud reliability, fault-tolerance, and security - Software as a Service (SaaS) architectures - Research and education use cases - Virtualization in cloud, cluster and grid environments - Cross-layer VM optimizations - Cloud use cases including optimizations - VM-based cloud performance modelling - Performance and cost modelling Lower-level design challenges for Hypervisors, VM-aware I/O devices, hardware accelerators or filesystems in VM environments, especially: - Cloud, grid and distributed filesystems - Hardware for I/O virtualization (storage/network/accelerators) - Storage and network I/O subsystems in virtualized environments - Novel software approaches to I/O virtualization - Paravirtualized I/O subsystems for modified/unmodified guests - Virtualization-aware cluster interconnects - Direct device assignment - NUMA-aware subsystems in virtualized environments - Hardware Accelerators in virtualization (GPUs/FPGAs) - Hardware extensions for virtualization - VMMs/Hypervisors for embedded systems Data Center management methods, including: - QoS and and service levels - VM cloud and cluster distribution algorithms - VM load-balancing in Clouds - Hypervisor extensions and tools for cluster and grid computing - Fault tolerant VM environments - Virtual machine monitor platforms - Management, deployment and monitoring of VM-based environments - Cluster provisioning in the Cloud PAPER SUBMISSION Papers submitted to the workshop will be reviewed by at least two members of the program committee and external reviewers. Submissions should include abstract, key words, the e-mail address of the corresponding author, and must not exceed 10 pages, including tables and figures at a main font size no smaller than 11 point. Submission of a paper should be regarded as a commitment that, should the paper be accepted, at least one of the authors will register and attend the conference to present the work. Accepted papers will be published in the Springer LNCS series - the format must be according to the Springer LNCS Style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: http://www.springer.de/comp/lncs/authors.html Style template: ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip Abstract Submission Link: http://edas.info/newPaper.php?c=11943 IMPORTANT DATES Rolling abstract submission June 11, 2012 - Full paper submission (extended) June 29, 2012 - Acceptance notification July 20, 2012 - Camera-ready version due August 28, 2012 - Workshop Date CHAIR Michael Alexander (chair), TU Wien, Austria Gianluigi Zanetti (co-chair), CRS4, Italy Anastassios Nanos (co-chair), NTUA, Greece PROGRAM COMMITTEE Paolo Anedda, CRS4, Italy Giovanni Busonera, CRS4, Italy Brad Calder, Microsoft, USA Roberto Canonico, University of Napoli Federico II, Italy Tommaso Cucinotta, Alcatel-Lucent Bell Labs, Ireland Werner Fischer, Thomas-Krenn AG, Germany William Gardner, University of Guelph, USA Marcus Hardt, Forschungszentrum Karlsruhe, Germany Sverre Jarp, CERN, Switzerland Shantenu Jha, Louisiana State University, USA Xuxian Jiang, NC State, USA Nectarios Koziris, National Technical University of Athens, Greece Simone Leo, CRS4, Italy Ignacio Llorente, Universidad Complutense de Madrid, Spain Naoya Maruyama, Tokyo Institute of Technology, Japan Jean-Marc Menaud, Ecole des Mines de Nantes, France Dimitrios Nikolopoulos, Foundation for Research&Technology Hellas, Greece Jose Renato Santos, HP Labs, USA Walter Schwaiger, TU Wien, Austria Yoshio Turner, HP Labs, USA Kurt Tutschku, University of Vienna, Austria Lizhe Wang, Indiana University, USA Chao-Tung Yang, Tunghai University, Taiwan DURATION: Workshop Duration is one day. GENERAL INFORMATION The workshop will be held as part of Euro-Par 2012. Euro-Par 2012: http://europar2012.cti.gr/

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[libvirt] [PATCH] qemu: don't modify domain on failed blockiotune
by Eric Blake 04 May '12

04 May '12

If you have a qemu build that lacks the blockio tune monitor command, then this command: $ virsh blkdeviotune rhel6u2 hda --total_bytes_sec 1000 error: Unable to change block I/O throttle error: internal error Unexpected error fails as expected (well, the error message is lousy), but the next dumpxml shows that the domain was modified anyway. Worse, that means if you save the domain then restore it, the restore will likely fail due to throttling being unsupported, even though no throttling should even be active because the monitor command failed in the first place. * src/qemu/qemu_driver.c (qemuDomainSetBlockIoTune): Check for error before making modification permanent. --- src/qemu/qemu_driver.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index a36c348..2fde15b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -12011,9 +12011,9 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, qemuDomainObjEnterMonitorWithDriver(driver, vm); ret = qemuMonitorSetBlockIoThrottle(priv->mon, device, &info); qemuDomainObjExitMonitorWithDriver(driver, vm); - vm->def->disks[idx]->blkdeviotune = info; if (ret < 0) goto endjob; + vm->def->disks[idx]->blkdeviotune = info; } if (flags & VIR_DOMAIN_AFFECT_CONFIG) { -- 1.7.7.6

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[libvirt] [PATCHv2] util: fix libvirtd startup failure due to netlink error
by Laine Stump 04 May '12

04 May '12

This solves the problem detailed in: https://bugzilla.redhat.com/show_bug.cgi?id=816465 and further detailed in https://www.redhat.com/archives/libvir-list/2012-May/msg00202.htm A short explanation is included in the comments of the patch itself. Even with ACK, I will wait to push this until I have verification that it does not break lldpad<-->libvirtd communication (if it does, I may need to use the nl_handle allocated during virNetlinkStartup() for virNetlinkEventServiceStart()). --- daemon/libvirtd.c | 6 +++++ src/libvirt_private.syms | 2 ++ src/util/virnetlink.c | 67 +++++++++++++++++++++++++++++++++++++++++++++- src/util/virnetlink.h | 5 +++- 4 files changed, 78 insertions(+), 2 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index b098f6a..5d57b50 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -1007,6 +1007,11 @@ int main(int argc, char **argv) { goto cleanup; } + if (virNetlinkStartup() < 0) { + ret = VIR_DAEMON_ERR_INIT; + goto cleanup; + } + if (!(srv = virNetServerNew(config->min_workers, config->max_workers, config->prio_workers, @@ -1143,6 +1148,7 @@ cleanup: virNetServerProgramFree(qemuProgram); virNetServerClose(srv); virNetServerFree(srv); + virNetlinkShutdown(); if (statuswrite != -1) { if (ret != 0) { /* Tell parent of daemon what failed */ diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d4038b2..e911774 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1330,6 +1330,8 @@ virNetlinkEventRemoveClient; virNetlinkEventServiceIsRunning; virNetlinkEventServiceStop; virNetlinkEventServiceStart; +virNetlinkShutdown; +virNetlinkStartup; # virnetmessage.h diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c index b2e9d51..a249e94 100644 --- a/src/util/virnetlink.c +++ b/src/util/virnetlink.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Red Hat, Inc. + * Copyright (C) 2010-2012 Red Hat, Inc. * Copyright (C) 2010-2012 IBM Corporation * * This library is free software; you can redistribute it and/or @@ -88,10 +88,63 @@ static int nextWatch = 1; # define NETLINK_EVENT_ALLOC_EXTENT 10 static virNetlinkEventSrvPrivatePtr server = NULL; +static struct nl_handle *placeholder_nlhandle = NULL; /* Function definitions */ /** + * virNetlinkStartup: + * + * Perform any initialization that needs to take place before the + * program starts up worker threads. This is currently used to assure + * that an nl_handle is allocated prior to any attempts to bind a + * netlink socket. For a discussion of why this is necessary, please + * see the following email message: + * + * https://www.redhat.com/archives/libvir-list/2012-May/msg00202.html + * + * The short version is that, without this placeholder allocation of + * an nl_handle that is never used, it is possible for nl_connect() in + * one thread to collide with a direct bind() of a netlink socket in + * another thread, leading to failure of the operation (which could + * lead to failure of libvirtd to start). Since getaddrinfo() (used by + * libvirtd in virSocketAddrParse, which is called quite frequently + * during startup) directly calls bind() on a netlink socket, this is + * actually a very common occurence (15-20% failure rate on some + * hardware). + * + * Returns 0 on success, -1 on failure. + */ +int +virNetlinkStartup(void) +{ + if (placeholder_nlhandle) + return 0; + placeholder_nlhandle = nl_handle_alloc(); + if (!placeholder_nlhandle) { + virReportSystemError(errno, "%s", + _("cannot allocate placeholder nlhandle for netlink")); + return -1; + } + return 0; +} + +/** + * virNetlinkShutdown: + * + * Undo any initialization done by virNetlinkStartup. This currently + * destroys the placeholder nl_handle. + */ +void +virNetlinkShutdown(void) +{ + if (placeholder_nlhandle) { + nl_handle_destroy(placeholder_nlhandle); + placeholder_nlhandle = NULL; + } +} + +/** * virNetlinkCommand: * @nlmsg: pointer to netlink message * @respbuf: pointer to pointer where response buffer will be allocated @@ -535,6 +588,18 @@ static const char *unsupported = N_("libnl was not available at build time"); static const char *unsupported = N_("not supported on non-linux platforms"); # endif +int +virNetlinkStartup(void) +{ + return 0; +} + +void +virNetlinkShutdown(void) +{ + return; +} + int virNetlinkCommand(struct nl_msg *nl_msg ATTRIBUTE_UNUSED, unsigned char **respbuf ATTRIBUTE_UNUSED, unsigned int *respbuflen ATTRIBUTE_UNUSED, diff --git a/src/util/virnetlink.h b/src/util/virnetlink.h index a72612e..93df59a 100644 --- a/src/util/virnetlink.h +++ b/src/util/virnetlink.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Red Hat, Inc. + * Copyright (C) 2010-2012 Red Hat, Inc. * Copyright (C) 2010-2012 IBM Corporation * * This library is free software; you can redistribute it and/or @@ -35,6 +35,9 @@ struct nlattr; # endif /* __linux__ */ +int virNetlinkStartup(void); +void virNetlinkShutdown(void); + int virNetlinkCommand(struct nl_msg *nl_msg, unsigned char **respbuf, unsigned int *respbuflen, int nl_pid); -- 1.7.10

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[libvirt] [PATCH V2 0/2] Various coverity fixes
by Stefan Berger 04 May '12

04 May '12

Coverity fixes from a previous post split into individual patches. Regards, Stefan

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Re: [libvirt] Virsh Command Reference -- Feedback
by Eric Blake 04 May '12

04 May '12

[adding the mailing list] On 04/24/2012 09:02 PM, Justin Clift wrote: > On 20/04/2012, at 11:58 PM, Robert Urban wrote: >> Hello, >> >> at the bottom of >> >> http://libvirt.org/sources/virshcmdref/html-single/ >> >> someone has written "we need feedback!", so I thought I'd give you a little feedback. >> >> I suggest deleting everything and replacing it with the string "Needs to be written". It would save people a lot of time that might be under the mistaken impression that there is anything of use to be found here. > > Ouch, guess that means you didn't find the few pages that actually have been done? > > The Virsh Command Reference was an effort that started some time ago when I was > working on the Libvirt team. But, it's not received much attention since I > moved teams. A few external contributors have updated or expanded things here > and there. > > Don't suppose you'd be interested in helping get it in shape? As you kinda point > out, the present version of it kinda sucks. :( All help appreciated. :) Reiterating this point to a wider audience. Is there anyone willing to help with improving our documentation? -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

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[libvirt] [PATCH V1 0/5] Various coverity fixes
by Stefan Berger 04 May '12

04 May '12

Coverity fixes from a previous post split into individual files. Regards, Stefan

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[libvirt] This patch mounts tmpfs on /run iff /run directory exists in libvirt-lxc containers.
by Daniel J Walsh 04 May '12

04 May '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 We do not want to share /run with containers in order to prevent information leakage and applications within the containers attempting to communicate with applications outside of the container. It uses the same mount options used for /dev. We also want to bind mount over /var/run directory since this will either be a symbolic link to /run but on some installations /run is bind mounted over /var/run. If we just mount /run we are not guaranteed the /var/run will have the same content. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+j7skACgkQrlYvE4MpobNSKQCfY2yGP/S+piUJ9VNtSjrliFTp ucAAoLJOazpcZvBRFnQUa7uqhh+tRagb =TjAb -----END PGP SIGNATURE-----

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[libvirt] disable usb?
by Gerd Hoffmann 04 May '12

04 May '12

Hi, Is there some way to disable usb altogether? libvirt used to just pass in '-usb'. With the arrival of usb2 support that changed into '-device uhci,...'. Problem is that this breaks with several machine types such as isapc. '-usb' is silently ignored in case the machine type can't handle usb. '-device uhci,...' leads to an error message though and the guest doesn't start. /me tried "<controller type='usb' model='none'/>" which didn't work. Just removing the controller from the xml doesn't work too, it gets automagically readded. Suggestions? thanks, Gerd

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Re: [libvirt] [Users] Host missing cpuFlags
by Itamar Heim 04 May '12

04 May '12

On 05/04/2012 09:23 AM, ovirt(a)qip.ru wrote: > Engine is incorrectly show cpu name (cluster compatibility is set to 3.1) > > all hosts in my cluster engine are shown as Conroe, but I have 2 hosts > from Nehalem family and 2 from SandyBridge > > this host must be SandyBridge but shown as Conroe vdsm reports the model at the end of the cpuFlags based on libvirt reporting models. cc'ing libvirt list for their thoughts. > > # vdsClient -s 0 getVdsCaps > HBAInventory = {'iSCSI': [{'InitiatorName': > 'iqn.1994-05.com.redhat:7e8ac59efbe0'}], 'FC': []} > ISCSIInitiatorName = iqn.1994-05.com.redhat:7e8ac59efbe0 > bondings = {'bond4': {'addr': '', 'cfg': {}, 'mtu': '1500', 'netmask': > '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}, 'bond0': {'addr': '', > 'cfg': {}, 'mtu': '1500', 'netmask': '', 'slaves': [], 'hwaddr': > '00:00:00:00:00:00'}, 'bond1': {'addr': '', 'cfg': {}, 'mtu': '1500', > 'netmask': '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}, 'bond2': > {'addr': '', 'cfg': {}, 'mtu': '1500', 'netmask': '', 'slaves': [], > 'hwaddr': '00:00:00:00:00:00'}, 'bond3': {'addr': '', 'cfg': {}, 'mtu': > '1500', 'netmask': '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}} > clusterLevels = ['3.0', '3.1'] > cpuCores = 4 > cpuFlags = > fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,rdtscp,lm,constant_tsc,arch_perfmon,pebs,bts,rep_good,nopl,xtopology,nonstop_tsc,aperfmperf,pni,pclmulqdq,dtes64,monitor,ds_cpl,vmx,smx,est,tm2,ssse3,cx16,xtpr,pdcm,pcid,sse4_1,sse4_2,x2apic,popcnt,tsc_deadline_timer,aes,xsave,avx,lahf_lm,ida,arat,epb,xsaveopt,pln,pts,dts,tpr_shadow,vnmi,flexpriority,ept,vpid,model_coreduo,model_Conroe > cpuModel = Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz > cpuSockets = 1 > cpuSpeed = 1600.000 > emulatedMachines = ['pc-0.14', 'pc', 'fedora-13', 'pc-0.13', 'pc-0.12', > 'pc-0.11', 'pc-0.10', 'isapc', 'pc-0.14', 'pc', 'fedora-13', 'pc-0.13', > 'pc-0.12', 'pc-0.11', 'pc-0.10', 'isapc'] > guestOverhead = 65 > hooks = {} > kvmEnabled = true > lastClient = 192.168.131.42 > lastClientIface = ovirtmgmt > management_ip = > memSize = 16032 > networks = {'ovirtmgmt': {'addr': '192.168.130.73', 'cfg': {'DELAY': > '0', 'NM_CONTROLLED': 'no', 'BOOTPROTO': 'dhcp', 'DEVICE': 'ovirtmgmt', > 'TYPE': 'Bridge', 'ONBOOT': 'yes'}, 'mtu': '1500', 'netmask': > '255.255.0.0', 'stp': 'off', 'bridged': 'True', 'gateway': > '192.168.131.17', 'ports': ['p6p1']}, 'Storage': {'addr': > '172.16.0.100', 'cfg': {'IPADDR': '172.16.0.100', 'DELAY': '0', > 'NETMASK': '255.255.255.0', 'STP': 'no', 'DEVICE': 'Storage', 'TYPE': > 'Bridge', 'ONBOOT': 'yes'}, 'mtu': '1500', 'netmask': '255.255.255.0', > 'stp': 'off', 'bridged': 'True', 'gateway': '0.0.0.0', 'ports': ['p4p1']}} > nics = {'p4p1': {'hwaddr': '00:1B:21:1D:B6:E2', 'netmask': '', 'speed': > 1000, 'addr': '', 'mtu': '1500'}, 'p6p1': {'hwaddr': > '54:04:A6:A1:BA:39', 'netmask': '', 'speed': 1000, 'addr': '', 'mtu': > '1500'}} > operatingSystem = {'release': '1', 'version': '16', 'name': 'oVirt Node'} > packages2 = {'kernel': {'release': '6.fc16.x86_64', 'buildtime': > 1334997800.0, 'version': '3.3.2'}, 'spice-server': {'release': '1.fc16', > 'buildtime': '1327339129', 'version': '0.10.1'}, 'vdsm': {'release': > '0.161.git094ec00.fc16', 'buildtime': '1336045451', 'version': '4.9.6'}, > 'qemu-kvm': {'release': '4.fc16', 'buildtime': '1327954752', 'version': > '0.15.1'}, 'libvirt': {'release': '1.fc16', 'buildtime': '1336048215', > 'version': '0.9.11.3'}, 'qemu-img': {'release': '4.fc16', 'buildtime': > '1327954752', 'version': '0.15.1'}} > reservedMem = 321 > software_revision = 0 > software_version = 4.9 > supportedProtocols = ['2.2', '2.3'] > supportedRHEVMs = ['3.0'] > uuid = 1C8F4D00-5BCB-11D9-8A55-5404A6A1BA39_00:1B:21:1D:B6:E2 > version_name = Snow Man > vlans = {} > vmTypes = ['kvm'] > > > > this host must be Nehalem but shown as Conroe > > # vdsClient -s 0 getVdsCaps > HBAInventory = {'iSCSI': [{'InitiatorName': > 'iqn.1994-05.com.redhat:972b88629c1'}], 'FC': []} > ISCSIInitiatorName = iqn.1994-05.com.redhat:972b88629c1 > bondings = {'bond4': {'addr': '', 'cfg': {}, 'mtu': '1500', 'netmask': > '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}, 'bond0': {'addr': '', > 'cfg': {}, 'mtu': '1500', 'netmask': '', 'slaves': [], 'hwaddr': > '00:00:00:00:00:00'}, 'bond1': {'addr': '', 'cfg': {}, 'mtu': '1500', > 'netmask': '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}, 'bond2': > {'addr': '', 'cfg': {}, 'mtu': '1500', 'netmask': '', 'slaves': [], > 'hwaddr': '00:00:00:00:00:00'}, 'bond3': {'addr': '', 'cfg': {}, 'mtu': > '1500', 'netmask': '', 'slaves': [], 'hwaddr': '00:00:00:00:00:00'}} > clusterLevels = ['3.0', '3.1'] > cpuCores = 8 > cpuFlags = > fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,pdpe1gb,rdtscp,lm,constant_tsc,arch_perfmon,pebs,bts,rep_good,nopl,xtopology,nonstop_tsc,aperfmperf,pni,dtes64,monitor,ds_cpl,vmx,smx,est,tm2,ssse3,cx16,xtpr,pdcm,pcid,dca,sse4_1,sse4_2,popcnt,lahf_lm,ida,arat,epb,dts,tpr_shadow,vnmi,flexpriority,ept,vpid,model_coreduo,model_Conroe > cpuModel = Intel(R) Xeon(R) CPU E5620 @ 2.40GHz > cpuSockets = 2 > cpuSpeed = 1600.000 > emulatedMachines = ['pc-0.14', 'pc', 'fedora-13', 'pc-0.13', 'pc-0.12', > 'pc-0.11', 'pc-0.10', 'isapc', 'pc-0.14', 'pc', 'fedora-13', 'pc-0.13', > 'pc-0.12', 'pc-0.11', 'pc-0.10', 'isapc'] > guestOverhead = 65 > hooks = {} > kvmEnabled = true > lastClient = 192.168.131.42 > lastClientIface = ovirtmgmt > management_ip = > memSize = 36200 > networks = {'ovirtmgmt': {'addr': '192.168.131.46', 'cfg': {'DELAY': > '0', 'NM_CONTROLLED': 'no', 'BOOTPROTO': 'dhcp', 'DEVICE': 'ovirtmgmt', > 'TYPE': 'Bridge', 'ONBOOT': 'yes'}, 'mtu': '1500', 'netmask': > '255.255.0.0', 'stp': 'off', 'bridged': 'True', 'gateway': > '192.168.131.17', 'ports': ['em1']}, 'Storage': {'addr': '172.16.0.104', > 'cfg': {'IPADDR': '172.16.0.104', 'DELAY': '0', 'NM_CONTROLLED': 'no', > 'NETMASK': '255.255.255.0', 'STP': 'no', 'DEVICE': 'Storage', 'TYPE': > 'Bridge', 'ONBOOT': 'yes'}, 'mtu': '1500', 'netmask': '255.255.255.0', > 'stp': 'off', 'bridged': 'True', 'gateway': '0.0.0.0', 'ports': ['em2']}} > nics = {'em1': {'hwaddr': '00:25:90:66:53:E8', 'netmask': '', 'speed': > 1000, 'addr': '', 'mtu': '1500'}, 'em2': {'hwaddr': '00:25:90:66:53:E9', > 'netmask': '', 'speed': 100, 'addr': '', 'mtu': '1500'}} > operatingSystem = {'release': '1', 'version': '16', 'name': 'oVirt Node'} > packages2 = {'kernel': {'release': '6.fc16.x86_64', 'buildtime': > 1334997800.0, 'version': '3.3.2'}, 'spice-server': {'release': '1.fc16', > 'buildtime': '1327339129', 'version': '0.10.1'}, 'vdsm': {'release': > '0.155.git457d1a0.fc16', 'buildtime': '1335883691', 'version': '4.9.6'}, > 'qemu-kvm': {'release': '4.fc16', 'buildtime': '1327954752', 'version': > '0.15.1'}, 'libvirt': {'release': '1.fc16', 'buildtime': '1335356374', > 'version': '0.9.11'}, 'qemu-img': {'release': '4.fc16', 'buildtime': > '1327954752', 'version': '0.15.1'}} > reservedMem = 321 > software_revision = 0 > software_version = 4.9 > supportedProtocols = ['2.2', '2.3'] > supportedRHEVMs = ['3.0'] > uuid = 49434D53-0200-9066-2500-66902500E853_00:25:90:66:53:E8 > version_name = Snow Man > vlans = {} > vmTypes = ['kvm'] > > > > Птн 04 Май 2012 09:14:22 +0400, Itamar Heim <iheim(a)redhat.com> написал: > > On 05/04/2012 06:49 AM, Nicholas Kesick wrote: > > I managed to get a host successfully added into oVirt Manager > (Fedora16 > > minimum install, then used the wiki RPM install method), but the > last > > event reports "Host <hostname> moved to Non-operational state as > host > > does not meet the cluster's minimum CPU level. Missing CPU features: > > CpuFlags" > > > > Can anyone shine some light on the problem? The CPU does support > > virtualization... and as far as I can tell from cat /proc/cpuinfo > does > > does have cpu flags. > > flags : fpu vme de pse tsc msr *pae* mce cx8 apic sep mtrr pge > mca cmov > > pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall > nx lm > > constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl *vmx* est > cid cx16 > > xtpr pdcm lahf_lm tpr_shadow > > what is the cpu level of the cluster? > what cluster compatibility level? > what does vdsClient -s 0 getVdsCaps shows for cpu flags? > > > > > Many thanks > > - Nick > > > > > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org > > nicspellword"="">ovirt.org/mailman/listinfo/users" title="Открыть > внешнюю ссылку">http://lists.ovirt.org/mailman/listinfo/users > <http://lists.%3Cspan%20class=> > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > nicspellword"="">ovirt.org/mailman/listinfo/users" title="Открыть > внешнюю ссылку">http://lists.ovirt.org/mailman/listinfo/users > <http://lists.%3Cspan%20class=> > > > > -- >

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[libvirt] [PATCH v3 0/3] usb devices with same vendorID, productID hotplug support
by Guannan Ren 04 May '12

04 May '12

https://bugzilla.redhat.com/show_bug.cgi?id=815755 The set of patch tries to fix the issue when multiple usb devices with same idVendor, idProduct are availible on host, the usb device with lowest bus:device will be attached to guest if usb xml file is given like this: <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x15e1'/> <product id='0x2007'/> </source> </hostdev> The reason is that the usb hotplug function searchs usb device in system files to match vendor and product id, the file with lowest number is always found first. After fix, in this case, libvirt will report an error like: # virsh attach-device rhel6u1 /tmp/usb.xml error: Failed to attach device from /tmp/usb.xml error: operation failed: multiple USB devices for 15e1:2007, use <address> to specify one At the same time, the usb part of domain initilization is also updated in patch 2/3 These patches also fix the problem when using the following xml, the usb device could be hotplugged in two domains without raising errors <hostdev mode='subsystem' type='usb' managed='yes'> <source> <address bus='6' device='7'/> </source> </hostdev> # virsh attach-device rhel6u12nd /tmp/usb_by_bus.xml error: Failed to attach device from /tmp/usb_by_bus.xml error: Requested operation is not valid: USB device 006:007 is in use by domain rhel6u1

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